CN106115911A - A kind of vinasse fermentation produces the device and method of biogas - Google Patents
A kind of vinasse fermentation produces the device and method of biogas Download PDFInfo
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- CN106115911A CN106115911A CN201610653526.9A CN201610653526A CN106115911A CN 106115911 A CN106115911 A CN 106115911A CN 201610653526 A CN201610653526 A CN 201610653526A CN 106115911 A CN106115911 A CN 106115911A
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- retort
- reative cell
- blending tank
- biogas
- feed liquid
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/28—Anaerobic digestion processes
- C02F3/286—Anaerobic digestion processes including two or more steps
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/28—Anaerobic digestion processes
- C02F3/2866—Particular arrangements for anaerobic reactors
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M21/00—Bioreactors or fermenters specially adapted for specific uses
- C12M21/04—Bioreactors or fermenters specially adapted for specific uses for producing gas, e.g. biogas
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M23/00—Constructional details, e.g. recesses, hinges
- C12M23/34—Internal compartments or partitions
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M27/00—Means for mixing, agitating or circulating fluids in the vessel
- C12M27/18—Flow directing inserts
- C12M27/24—Draft tube
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M29/00—Means for introduction, extraction or recirculation of materials, e.g. pumps
- C12M29/18—External loop; Means for reintroduction of fermented biomass or liquid percolate
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M45/00—Means for pre-treatment of biological substances
- C12M45/02—Means for pre-treatment of biological substances by mechanical forces; Stirring; Trituration; Comminuting
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M45/00—Means for pre-treatment of biological substances
- C12M45/20—Heating; Cooling
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
- C12P5/00—Preparation of hydrocarbons or halogenated hydrocarbons
- C12P5/02—Preparation of hydrocarbons or halogenated hydrocarbons acyclic
- C12P5/023—Methane
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/32—Nature of the water, waste water, sewage or sludge to be treated from the food or foodstuff industry, e.g. brewery waste waters
- C02F2103/325—Nature of the water, waste water, sewage or sludge to be treated from the food or foodstuff industry, e.g. brewery waste waters from processes relating to the production of wine products
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
Abstract
The invention discloses a kind of vinasse fermentation and produce the device and method of biogas, this device is included blending tank, circulating pump and the retort being sequentially connected with by pipeline, also includes the return duct of coupled reaction tank and blending tank；Described retort is provided with water-locator, the first reative cell, first order three phase separator, the second reative cell, second level three phase separator, mozzle, discharge outlet and air vent；Described blending tank is provided with heater, evacuation port, agitator and charging aperture.A kind of vinasse fermentation produces the method for biogas and comprises the following steps: 1) distillery waste water pre fermentation in blending tank；2) distillery waste water two-stage anaerobic fermentation process in retort.Assembly of the invention is stable, easy to control, and outer row's sludge quantity is few, can produce the biogas of methane content more than 60%.Apparatus and method of the present invention is applicable to process high wine lees wastewater, and sludge loss is few, and organic removal effect is good, and operating cost is low.
Description
Technical field
The present invention relates to a kind of vinasse fermentation and produce the device and method of biogas.
Background technology
Recycling economy is the optimization model during human economic development, and it changes the development of linear mould of traditional economy
Formula, presents the reaction type closed loop flow process of " resource-product-regenerated resources ", by the way of low exploitation, usury are with, low emission with
Minimum resource and Environmental costs, obtain maximum economic and social benefits.
Chinese liquor is the profits tax rich and influential family of China, and industry adds up to the profits tax turned over every year more than up to 1,000 hundred million yuan.Chinese liquor in recent years
Production constantly expanding, the quantity of distiller grains also sharply increases, the annual distiller grains amount about 98,660,000 tons produced.Distiller grains are combined
Close to utilize and both can alleviate environmental pollution, economic benefit can be produced again, it is achieved recycling of resource.
Utilize distillery waste water carry out anaerobic fermentation produce biogas be reduce distiller grains water resource pollution, realize distiller grains circulation profit
Important measures.In early days in fermentation technology, there is the shortcomings such as treatment effeciency is low, effluent quality is poor, particularly processing jade
When rice etc. are containing the wine lees liquor that protein and higher fatty acids are more, poor effect.Along with the development of water technology, research
Persons, by solid-liquid separation and high efficiency reactor being combined, not only increase treatment effeciency and treatment effect, moreover it is possible to prepare
Biogas, produces economic benefit.
At present, distillery waste water processes the most frequently used reactor is UASB reactor, EGSB reactor, ABR reactor and IC
Reactor.UASB structure of reactor is simple, and operating cost is low, and treatment effeciency is high, but its service condition and control require higher, place
During reason concentration of suspension higher waste water, blocking and short stream easily occurring, under low temperature and low consistency conditions, treatment efficiency is too low, load
Being easily generated sludge loss, initial start-up and formation stable particle mud used time time higher longer, the sudden change to water quality and load is quick
Sense, anti impulsion load ability；EGSB reactor has the highest volumetric loading and ratio of height to diameter, simple to operate, saves energy consumption, anti-
Impact load ability is strong, has pH value buffer capacity, and stable water outlet is good, but its service condition and control require higher, because of outstanding
Floating solid is by can quickly be rushed out with water outlet time granular mud bed, it is difficult to degraded, therefore is not suitable for processing solids and contains
Measure high waste water；Noxious substance in ABR reactor impact load and water inlet has well buffering adaptation ability, the shortest
Stream, does not blocks, it is not necessary to stirring, easily starts, but water distribution uniformity relatively difficult to achieve, it is easily generated channel and dead angle, to operating activity
Mud requires height, and the culturing sludge of inoculation domestication will be gone out granule anaerobic sludge could startup optimization；IC reactor takes up an area few, holds
Long-pending load is high, strong shock resistance, and anti-seismic design is strong, has pH value buffer capacity, and stable water outlet is good, starts the cycle short,
Operation management is simple, it is adaptable to process organic high strength wastewater, but the riser of muddy water mixed solution and return duct in circulation in it
Easily blocking, causes interior circulation paralysis, affects insoluble organic removal effect.
Summary of the invention
It is an object of the invention to provide a kind of vinasse fermentation and produce the device and method of biogas.
The technical solution used in the present invention is:
A kind of vinasse fermentation produces the device of biogas, and it includes blending tank, circulating pump and the retort being sequentially connected with by pipeline,
Also include the return duct for the distillery waste water containing partial sludge in retort the second reative cell being back to blending tank；Described
Retort this most internal be disposed with from bottom to up water-locator, the first reative cell, first order three phase separator, the second reative cell,
Second level three phase separator, mozzle, discharge outlet and air vent；Described blending tank is the most internal is disposed with heating from bottom to up
Device, evacuation port, agitator and charging aperture.
Described blending tank is additionally provided with pH measuring instrument, temperature measuring set and liquid level charactron.
Described water-locator is funnel-form.
Use assembly of the invention to carry out vinasse fermentation and produce biogas, comprise the following steps:
1) distillery waste water is added blending tank by charging aperture, with in tank original feed liquid and from retort the second reative cell backflow
Distillery waste water containing partial sludge is sufficiently mixed uniformly, controls temperature and pH value, is hydrolyzed and is acidified；
2) by circulating pump, feed liquid in blending tank being pumped into retort, feed liquid is uniformly distributed through water-locator, at the pressure of circulating pump
Under the common effect of the gas that impact and fermentation produce, feed liquid is sufficiently mixed with the anaerobic sludge of the first reative cell, and anaerobism occurs
Fermentation reaction, the biogas of generation rises to second level three phase separator, major part mud after first order three phase separator separates
Being trapped in the first reative cell by first order three phase separator, remaining mud and feed liquid go successively to the second reative cell, anti-second
Answering in room and ferment further, the biogas of generation rises to retort top after second level three phase separator separates, and passes through aerofluxus
Mouth is discharged and is collected, and feed liquid and mud are through second level three phase separator generation solid-liquid separation, and mud is trapped within the second reative cell,
A part of feed liquid is discharged by discharge outlet, and remaining feed liquid is back to blending tank by return duct.
Temperature in described blending tank is 30～40 DEG C, and pH value is 6.5～7.5.
Temperature in described retort is 33～37 DEG C, and pH value is 6.8～7.5.
In first reative cell of described retort, the upflow velocity of feed liquid is 10～20m/h.
In second reative cell of described retort, the upflow velocity of feed liquid is 2～10m/h.
Described circulating pump is in opening all the time.
The feeding manner of described distillery waste water is batch (-type) or continuous way.
The invention has the beneficial effects as follows:
1) two-stage three phase separator is set, strengthens mud-water separation effect, make reactor keep high sludge concentration, organic loading of intaking
Exceed well over common anaerobic reactor, be highly suitable for the process of high wine lees wastewater (COD >=2000mg/L)；
2) water-locator in retort is funnel-form, and water distribution is uniform, and upflow velocity is fast, and mass transfer effect is good, and anaerobic grain sludge exists
In expanded state in first reative cell, channel and dead angle will not be produced；
3) by arranging blending tank formation outer circulation, make upper strata mud and the backflow of part supernatant, on the one hand can reduce mud
Run off, provide condition for fast start up of reactor, the basicity that the most available COD converts, pH value is played cushioning effect,
In making reactor, pH value keeps optimum state, reduces the throwing alkali number of water inlet；
4) waste water first passes through the blending tank containing a small amount of mud and enters back into retort, can be hydrolyzed in advance and be acidified, by insoluble
Hydrolysis of organic matter becomes dissolved organic matter, then the larger molecular organics of solubility is changed into fatty acid and alcohols etc., thus contracts
Methane phase process in short reaction tank, it is achieved the shorter time of staying and good methane phase effect, does not affect Organic substance simultaneously
Removal effect；
5) can avoid the short stream caused because of blocking, plant running is stable, and control condition is simple, and outer row's sludge quantity is few, alleviates dirt
The burden that mud processes, can produce the biogas of methane content more than 60%, it is achieved that the cycling and reutilization of resource simultaneously.
Accompanying drawing explanation
Fig. 1 is the structural representation of the device of the vinasse fermentation production biogas of the present invention.
Accompanying drawing identifier declaration: 1, blending tank；11, heater；12, evacuation port；13, agitator；14, charging aperture；15、
PH measuring instrument；16, temperature measuring set；17, liquid level charactron；2, circulating pump；3, retort；31, water-locator；32, the first reaction
Room；33, first order three phase separator；34, the second reative cell；35, second level three phase separator；36, discharge outlet；37, air vent；
38, mozzle；4, return duct.
Detailed description of the invention
Below in conjunction with specific embodiments and the drawings, the present invention is made further explanation and description.
As shown in Figure 1, a kind of vinasse fermentation produces the device of biogas, it blending tank 1 including being sequentially connected with by pipeline,
Circulating pump 2 and retort 3, also include for being refluxed by the distillery waste water containing partial sludge in retort 3 second reative cell 34
Return duct 4 to blending tank 1；Described retort 3 is internal be disposed with from bottom to up water-locator the 31, first reative cell 32,
First order three phase separator the 33, second reative cell 34, second level three phase separator 35, mozzle 38, discharge outlet 36 and air vent
37；Described blending tank 1 is internal is disposed with heater 11, evacuation port 12, agitator 13 and charging aperture 14 from bottom to up.
Preferably, described blending tank 1 is additionally provided with pH measuring instrument 15, temperature measuring set 16 and liquid level charactron 17.
Preferably, described water-locator 31 is funnel-form.
Use assembly of the invention to carry out vinasse fermentation and produce biogas, comprise the following steps:
1) distillery waste water is added blending tank by charging aperture, with in tank original feed liquid and from retort the second reative cell backflow
Distillery waste water containing partial sludge is sufficiently mixed uniformly, controls temperature and pH value, is hydrolyzed and is acidified；
2) by circulating pump, feed liquid in blending tank being pumped into retort, feed liquid is uniformly distributed through water-locator, at the pressure of circulating pump
Under the common effect of the gas that impact and fermentation produce, feed liquid is sufficiently mixed with the anaerobic sludge of the first reative cell, and anaerobism occurs
Fermentation reaction, the biogas of generation rises to second level three phase separator, major part mud after first order three phase separator separates
Being trapped in the first reative cell by first order three phase separator, remaining mud and feed liquid go successively to the second reative cell, anti-second
Answering in room and ferment further, the biogas of generation rises to retort top after second level three phase separator separates, and passes through aerofluxus
Mouth is discharged and is collected, and feed liquid and mud are through second level three phase separator generation solid-liquid separation, and mud is trapped within the second reative cell,
A part of feed liquid is discharged by discharge outlet, and remaining feed liquid is back to blending tank by return duct.
Preferably, the temperature in described blending tank is 30～40 DEG C, and pH value is 6.5～7.5.
Preferably, the temperature in described retort is 33～37 DEG C, and pH value is 6.8～7.5.
Preferably, in the first reative cell of described retort, the upflow velocity of feed liquid is 10～20m/h.
Preferably, in the second reative cell of described retort, the upflow velocity of feed liquid is 2～10m/h.
Preferably, described circulating pump is in opening all the time.
Preferably, the feeding manner of described distillery waste water is batch (-type) or continuous way, and according to volumetric loading (15～
30kgCOD/(m3D)) and distillery waste water COD calculate feed volume.
Above-described embodiment is the present invention preferably embodiment, but embodiments of the present invention are not by above-described embodiment
Limit, the change made under other any spirit without departing from the present invention and principle, modify, substitute, combine, simplify,
All should be the substitute mode of equivalence, within being included in protection scope of the present invention.
Claims (10)
1. a vinasse fermentation produces the device of biogas, it is characterised in that: it is included the blending tank being sequentially connected with by pipeline, follows
Ring pump and retort, also include for the distillery waste water containing partial sludge in retort the second reative cell is back to blending tank
Return duct；Described retort is the most internal is disposed with water-locator, the first reative cell, first order three phase separation from bottom to up
Device, the second reative cell, second level three phase separator, mozzle, discharge outlet and air vent；Described blending tank is the most internal from bottom to up
It is disposed with heater, evacuation port, agitator and charging aperture.
Vinasse fermentation the most according to claim 1 produces the device of biogas, it is characterised in that: described blending tank is additionally provided with
PH measuring instrument, temperature measuring set and liquid level charactron.
Vinasse fermentation the most according to claim 1 produces the device of biogas, it is characterised in that: described water-locator is funnel
Shape.
4. the method that a vinasse fermentation produces biogas, it is characterised in that: comprise the following steps:
1) distillery waste water is added blending tank by charging aperture, with in tank original feed liquid and from retort the second reative cell backflow
Distillery waste water containing partial sludge is sufficiently mixed uniformly, controls temperature and pH value, is hydrolyzed and is acidified；
2) by circulating pump, feed liquid in blending tank being pumped into retort, feed liquid is uniformly distributed through water-locator, at the pressure of circulating pump
Under the common effect of the gas that impact and fermentation produce, feed liquid is sufficiently mixed with the anaerobic sludge of the first reative cell, and anaerobism occurs
Fermentation reaction, the biogas of generation rises to second level three phase separator, major part mud after first order three phase separator separates
Being trapped in the first reative cell by first order three phase separator, remaining mud and feed liquid go successively to the second reative cell, anti-second
Answering in room and ferment further, the biogas of generation rises to retort top after second level three phase separator separates, and passes through aerofluxus
Mouth is discharged and is collected, and feed liquid and mud are through second level three phase separator generation solid-liquid separation, and mud is trapped within the second reative cell,
A part of feed liquid is discharged by discharge outlet, and remaining feed liquid is back to blending tank by return duct.
Method the most according to claim 4, it is characterised in that: the temperature in described blending tank is 30～40 DEG C, and pH value is
6.5～7.5.
Method the most according to claim 4, it is characterised in that: the temperature in described retort is 33～37 DEG C, and pH value is
6.8～7.5.
Method the most according to claim 4, it is characterised in that: the upper up-flow of feed liquid in the first reative cell of described retort
Speed is 10～20m/h.
Method the most according to claim 4, it is characterised in that: the upper up-flow of feed liquid in the second reative cell of described retort
Speed is 2～10m/h.
Method the most according to claim 4, it is characterised in that: described circulating pump is in opening all the time.
Method the most according to claim 4, it is characterised in that: the feeding manner of described distillery waste water is batch (-type) or company
Continuous formula.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610653526.9A CN106115911B (en) | 2016-08-10 | 2016-08-10 | A kind of device and method of vinasse fermentation production biogas |
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| CN201610653526.9A CN106115911B (en) | 2016-08-10 | 2016-08-10 | A kind of device and method of vinasse fermentation production biogas |
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| CN106115911A true CN106115911A (en) | 2016-11-16 |
| CN106115911B CN106115911B (en) | 2019-02-15 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107916221A (en) * | 2017-12-06 | 2018-04-17 | 梁均燕 | Anaerobic ferment devices |
| CN111533253A (en) * | 2020-04-27 | 2020-08-14 | 杭州康诺环境技术工程有限公司 | Anaerobic reaction tank |
| CN112094002A (en) * | 2020-11-09 | 2020-12-18 | 山东金宜善新材料有限公司 | Multistage wastewater treatment device and treatment process thereof |
| CN112250173A (en) * | 2020-09-09 | 2021-01-22 | 长江大学 | OIC denitrification sewage treatment device and method |
| CN114455700A (en) * | 2022-01-20 | 2022-05-10 | 扬州大学 | Anaerobic reactor baffled water outlet device |
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| CN102586334A (en) * | 2012-02-17 | 2012-07-18 | 江南大学 | Method for producing biogas from kitchen wastes by anaerobic fermentation |
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| CN104445608A (en) * | 2014-12-17 | 2015-03-25 | 中国科学院生态环境研究中心 | Inner-loop anaerobic membrane bioreactor treatment method and equipment for high-concentration organic wastewater |
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| JP2009148705A (en) * | 2007-12-20 | 2009-07-09 | Ebara Corp | Method and apparatus for anaerobic treatment |
| CN102586334A (en) * | 2012-02-17 | 2012-07-18 | 江南大学 | Method for producing biogas from kitchen wastes by anaerobic fermentation |
| CN103739066A (en) * | 2013-12-24 | 2014-04-23 | 清华大学 | Autotrophic denitrification synchronous sludge fermentation coupled denitrification device and method for sewage with low nitrogen ratio |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107916221A (en) * | 2017-12-06 | 2018-04-17 | 梁均燕 | Anaerobic ferment devices |
| CN111533253A (en) * | 2020-04-27 | 2020-08-14 | 杭州康诺环境技术工程有限公司 | Anaerobic reaction tank |
| CN112250173A (en) * | 2020-09-09 | 2021-01-22 | 长江大学 | OIC denitrification sewage treatment device and method |
| CN112094002A (en) * | 2020-11-09 | 2020-12-18 | 山东金宜善新材料有限公司 | Multistage wastewater treatment device and treatment process thereof |
| CN112094002B (en) * | 2020-11-09 | 2021-02-05 | 山东金宜善新材料有限公司 | Multistage wastewater treatment device and treatment process thereof |
| CN114455700A (en) * | 2022-01-20 | 2022-05-10 | 扬州大学 | Anaerobic reactor baffled water outlet device |
| CN114455700B (en) * | 2022-01-20 | 2023-12-08 | 扬州大学 | Anaerobic reactor baffling water outlet device |
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|---|---|
| CN106115911B (en) | 2019-02-15 |
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Denomination of invention: Device and method for producing biogas by distiller's grains fermentation Effective date of registration: 20211118 Granted publication date: 20190215 Pledgee: Guangzhou Caold financing Company limited by guarantee Pledgor: GUANGZHOU JINLONGFENG ENVIRONMENTAL PROTECTION EQUIPMENT ENGINEERING CO.,LTD. Registration number: Y2021980012739 |